Detector-bar.



J. REID.

DETECTOR BAR.

APPLICATION FILED APR.27, 1912.

Patented Oct. 26, 1915.

WITNESSES JAMES REID, or WATERVLIET, NEW YORK, AssIGNoR 'ro FEDERAL SIGNAL COMPANY,

A CORPORATION or new YORK.

DETECTOR-BAR,

mamas.

App1icationfiledApril 27, 1912. Serial No. 693,754.

To all whom it may concern:

Be it known that I, JAMEs REID, a citizen of the United States, and a resident of VVatervliet, county of Albany, and State of New York, have invented certain new and useful Improvements in Detector-Bars, of which the following is a specification.

This invention relates to improvements in detector bars and seeks to provide a novel and useful arrangement whereby the bar may bemoved into two detecting positions one such position being against the tread of a wheel, andthe other detecting position being against the side face of a wheel.

In the present invention I make use of a swinging arm to move the bar into one detecting position and additional means of a suitable nature to move the bar into its other detecting position. In the present instance, said swinging arm is arranged to move the bar upward against the tread of a wheel and a cam is employed to move the bar inward against the side face of a wheel.

In its broader aspect, the invention is capable of being embodied in various forms.

In the accompanying drawings forming part of this specification, and in which like reference numerals designate corresponding parts, Figure 1 is a perspective View, the parts being in normal position. Fig. 2 is a sectional elevation onthe line 22 of Fig. 3. showing the bar in its extreme inward position over the head of the rail. Fig. 3 is a plan view showing theparts in the-same po sition as in Fig. 2; Fig. 4: is a side view of the clip.

Referring now to the particular features as shown in the drawings, 1 is; the rail and 2 is the detector bar, preferably formed ofangle iron, and provided with an operating rod 3 for imparting longitudinal movement to the bar.

4 is a clip secured to the rail by bolts 5 and provided with a bearing 6 for the rotatable pin 7.

8 is a swingingarm provided with a slot 9 to receive the flattened projecting end of the pin 7. The arm 8, is secured to the pin 7 by a pivot pin 10 held in place by a cotter pin 11.

The clip is provided on its outer endbeneath the pivot pin 10 with the cam face 12 terminating in recesses 13 and 14b The clip isalso provided on its outer end above the pivot pin 10 with two cam faces 15 and-l6 between which cam faces there is provided a recess 17. The upper end of the arm 8 is Specification of Letters Patent. Patented Ont. 26', 1915. it

pivotally secured to the bar 2 by the pivot pin 18. The arm 8 projects below the pin 10 to provide a follower 19 designed to traverse the cam 12, and the inner face of the arm 8 traverses the cams 15 and 16' and the recess 17. The slot 9'in the arm 8 is larger than the end of the pin '7 which it receives to permit the arm to tilt toward and from the rail.

I In the normalposition, as shown in Fig. 1, the bar is slightly below the plane of the rail head and slightly beyond the side face thereof. While the bar is in this position, the arm 8 above the pivotpin 10 is resting against the cam 15 and the follower 19 is in the recess 14. When the bar is moved longitudinally, it is carried upward by the arm 8, which exerts an upward thrust to the bar, so as to meet the-tread of a wheel on the rail if such wheel is projecting beyond the rail head; If the wheel is'not so projecting, further movement of the bar causes it to to move inward across the head of the rail so as to contact with the side face of a wheel if such wheel is on the rail but is not projecting beyond the head thereof. This inward movement is imparted to the bar by part of the arm finally reachesthe cam 16 at the same time the follower 19 reaches the recess 13. Thereupon, the cam 16 tilts the upper end of the arm 8 outward,'thereby exerting an outward'thrust to the bar and withdrawing the bar fromover the head of the rail and permitting the bar to finally come to' rest beyond and beneath the rail head. When the bar is moved longitudinally in the opposite direction, it moves inward by Letters Patent is ing positions.

1. A detector bar designed and adapted tomove intoftwo detecting. positions,-.one detectingposition being against thetread of a wheel and another detecting-position being against the side face of a wheel; and means comprising swinging arms and cam faces formoving said bar into said detect- -2.; A detector bar designed and adapted to move into two detecting positions, one

detecting position-being against the tread of a. wheel and another detecting position beingagainst-the side face of a wheel; and

means comprising swinging arms and cam faces acting on; said arms for'moving the bar into sa1d detecting posltlons. V V

3. A detectorbar designed and adapted to move into two detecting positions, one

, 4 A detector-bar "detectingiposition being against the tread of a wheel and another detecting position being-agalnst the slde face of a wheel; and means comprlsmg swlngmg arms and cam faces for moving the bar into, said detecting positions,the swinging arms exerting an upward thrust to carry thefbar upward and the cam faces exerting a thrust to carry the bar inward. i

to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting pos1tio n.be-

, ing ragainstthe sideface of a wheel; and

means comprising swinging armsand cam faces for moving said, bar into its detecting positions, the swinging arms exerting an upward thrust to the bar and the camv faces arranged to bear'upon said arms to exert an inward thrust tothebar.

5.lfA"detectori bar' designed and adapted to move intotwo detecting positions, one

detecting positionbeing against the tread of v a wheel and another detecting position being against the side face of a wheel; clips secured to the rail; swinging arms pivoted to said clips and to saidbar to move the bar 7 against the tread of a wheel; and means in addition to said arms to exert a thrust to :bring the bar'against the side face of a wheel." c

'6. A detector bar designed and adapted to" .moveinto two detecting positions, one

detecting position being against the tread of' designed and adapteda wheel and another detecting position being against the side face of a wheel; clips secured to the rail; swinging arms pivoted to said clips and to said bar to move the bar against the tread of a wheel; and cam faces to exert a thrust to thereby bring the bar against the side face of a wheel.

7. A detector bar designed and adapted to move into two detecting positions, one

detecting position being against the tread of "a wheel and another detecting positlon being against the side face of a wheel; clips secured to the rail; swinging arms pivoted to said clips and to said bar to move the bar against the tread of a wheel; and cam faces on said clips to exert a thrust to thereby bring the bar against the side face of a wheel.

8. A detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side face of a wheel; clips secured to the rail; swinging arms pivoted to said clips and to said bar to move the bar against the tread of a wheel and also arranged to tilt toward the rail; and cam faces on the clips acting on said arms for moving the bar inward against the side face of a wheel.

9. A detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side face of a wheel; and means comprising swinging arms and cam faces for moving the bar into and out of its detecting positions.

10. A detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side face of a wheel; and means comprising swinging arms for moving said bar 'into and out of one of said detecting positions and also comprising cam faces acting on said arms for moving said bar into and out of its other detecting position.

11. A detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side face of a wheel; and means comprising swinging arms for moving saidbar into and out of its detecting positionagainst the tread ofa wheel and also comprising cam faces for moving said bar into and out of its detecting position against the side face of a wheel.

'12. A longitudinally moving detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side face of a wheel; and means comprising swinging arms and cam faces for moving said bar into its detecting positions.

13. A longitudinally moving detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side' face of a wheel; and means comprising swinging arms for moving said bar into its detecting position against the tread of a Wheel and also comprising cam faces for moving said bar into its detecting position of a wheel; and means in addition to said arms to exert a thrust to bring the bar against the side face of a wheel.

15. A longitudinally moving detector bar designed and adapted to move into two detecting positions, one detecting position being against the tread of a wheel and another detecting position being against the side face of a wheel; clips secured to the rail; swinging arms pivoted to said clips and to said bar to move the bar against the tread of a wheel and also arranged to tilt toward the rail; and cam faces on said clips acting on said arms for moving the bar inward against the side face of a wheel.

In testimony whereof, I havesigned my name to this specification, in the presence of two subscribing witnesses.

- JAMES REID. Witnesses:

HERMAN P. OBER, WILLIAM W. LAVARACK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

